EP1858142A1 - Moteur linéaire - Google Patents

Moteur linéaire Download PDF

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Publication number
EP1858142A1
EP1858142A1 EP07009559A EP07009559A EP1858142A1 EP 1858142 A1 EP1858142 A1 EP 1858142A1 EP 07009559 A EP07009559 A EP 07009559A EP 07009559 A EP07009559 A EP 07009559A EP 1858142 A1 EP1858142 A1 EP 1858142A1
Authority
EP
European Patent Office
Prior art keywords
linear motor
permanent magnets
winding
coils
motor according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07009559A
Other languages
German (de)
English (en)
Inventor
Gerhard Prof.Dr.-Ing. Huth
Peter Dr.-Ing. Greilach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Technische Universitat Kaiserlautern
Technische Universitat Kaiserslautern
Original Assignee
Technische Universitat Kaiserlautern
Technische Universitat Kaiserslautern
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Technische Universitat Kaiserlautern, Technische Universitat Kaiserslautern filed Critical Technische Universitat Kaiserlautern
Publication of EP1858142A1 publication Critical patent/EP1858142A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
    • H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/17—Stator cores with permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/2726—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of a single magnet or two or more axially juxtaposed single magnets

Definitions

  • the invention relates to a linear motor with a secondary part with permanent magnets and a movable primary part with current-carrying polyphase winding.
  • electric actuators are becoming increasingly popular. With such actuators, an object can be positioned and / or aligned at a desired location.
  • Conventionally rotating electric servomotors drive via a gearbox or directly to a ball screw spindle.
  • electric synchronous linear motors that drive linear axes directly and therefore must have the most uniform and trouble-free power delivery.
  • These permanent-magnet linear drives have a secondary part with permanent magnets whose north and south poles are arranged alternately perpendicular to the direction of movement of a primary part.
  • the primary part also called short stator, is usually constructed of ferromagnetic sheets, in the grooves usually a three-phase winding is arranged. This requires a carriage to move the primary part absorb large forces in relation to the driving force. It is also known to carry out the primary part without ferromagnetic materials in order to obtain a low mass and to avoid cogging forces due to edge effects and grooving.
  • the magnitude of the force that can be applied by such a linear motor is proportional to the vector product of the current charge and the magnetic field.
  • the EP 0 422 539 B1 also describes a rotary drive with a rotor and a stator, wherein projecting laterally over the rotor coil sections are bent approximately at right angles. Thus, a high efficiency is achieved. A linear drive is not possible.
  • EP 0 858 965 B1 a linear motor with ironless windings, which are arranged between opposing rows of permanent magnets. Sonach the windings are surrounded on both sides by permanent magnets and the efficiency is increased. However, several magnetic tracks are necessary for this purpose.
  • the object is achieved in that the permanent magnets are arranged such that their north and south poles are arranged one behind the other in the direction of movement and surround the coils of the polyphase winding, the permanent magnets.
  • An idea of the invention is to arrange the permanent magnets in the interior of the coils of the polyphase winding, hereinafter also called winding coils, whereby they are pulled in or pushed out as a result of the coil energization in the winding coils. If the permanent magnets are fixed, the winding coils are accordingly moved along the permanent magnets.
  • the shape of the winding coils can be chosen as desired in the invention, but preferably as described below.
  • the permanent magnets are in particular arranged in such a direction of movement, that the north or south poles each have two adjacent permanent magnets facing each other.
  • the linear motor has only one magnetic track and therefore can have a more compact design despite greater power delivery.
  • the distance between the winding coils and the permanent magnets must be kept as small as possible.
  • the winding coils are reversed in such a way that in each case a permanent magnet is drawn in and at the dead center, i. when their tensile and compressive forces cancel each other on the permanent magnet, the magnetic field now points in the other direction to quasi push the permanent magnet out of the coil.
  • the advantage of the invention lies in the fact that a driving force which can be generated with a linear motor designed in this way is greater by at least a factor of two than the conventional electric motors for the same current intensity in the winding or an equally strong magnetic field.
  • the linear motor is ironless designed to avoid cogging moments due to edge effects and the like.
  • the winding coils are given the desired shape with other non-ferromagnetic materials.
  • the motor can start from any position itself, at least two winding phases are required, which are each arranged in such a length and at such a distance, seen in the direction of movement, one behind the other, that the distances between adjacent permanent magnets can be bridged, respectively the magnetic fields generated by the winding coils in each case in cooperation with the permanent magnets sufficient tensile strength or compressive forces are generated.
  • the coils are arranged without crossing, which simplifies their structure.
  • three winding phases are arranged one behind the other, which are controlled in a conventional manner three-phase. This winding design causes a relatively high power density.
  • the linear motor phase-pure windings whose coil width can be varied.
  • the machine as a motor can start in any position and in continuous operation provide a nearly constant torque or a nearly constant force regardless of the relative position of the primary coils to the permanent magnets.
  • a traveling magnetic field is generated in a tube shape, and the force action is directed so that the moving part assumes the position where the flux linkage of the winding with the permanent magnets and thus the magnetic energy becomes maximum.
  • the winding coils are expediently formed substantially round or rectangular.
  • the permanent magnets are also round or rectangular.
  • the winding coils surround the permanent magnets substantially completely.
  • a continuous circumferential encompassing is not possible because the permanent magnets themselves still on a substrate must be supported.
  • only one open slot can remain, with a rectangular design one edge of the rectangle remains free.
  • all other shapes can also be selected, for example oval or trapezoidal.
  • the linear motor is designed as a normal force actuator and requires only a secondary part, a magnetic track.
  • electromagnetic actuators can be divided into two groups, namely the normal force actuators and the thrust actuators.
  • the force acting in the direction of the magnetic field lines is used predominantly perpendicular to the coil surface, ie the normal force, as the driving force.
  • Normal force actuators are thus inherently ironless actuators.
  • the distance between the coil and the penetrating permanent magnet perpendicular to the direction of movement must be as small as possible, the radial extent of the coil in the sectional area perpendicular to the direction of movement should be kept low and the coil should as completely as possible surround the penetrating magnet.
  • the linear motor in principle, it is also possible to design the linear motor as a rotating servomotor.
  • the permanent magnets arranged one behind the other are arranged as a circular ring to a magnetic rail and the winding coils surround this magnetic rail and run around in a circle.
  • the winding coils seen in plan view, have radially outwards or inwards.
  • three-phase winding systems for normal force actuators consist of crossing-free coil arrangements and cause no limitation of the adjustment movement. They are thus basically suitable for unlimited linear and rotary motion applications.
  • the winding systems with their special coil arrangements are subject to a winding system which, assuming a symmetrical structure, allows for analogy to three-phase open-loop windings in the specific embodiment as a tooth coil winding.
  • the secondary motor 2 essentially consists of a support rail 3 for supporting permanent magnets 4, which are arranged one after the other in the direction of the double arrow R in such a way that the south poles S resp North poles N of two adjacent permanent magnets 4 facing each other. Magnetic materials for the permanent magnets 4 with sufficient field strengths are known in the art.
  • the winding coils and the permanent magnets 4 of FIG. 2 have a round cross-section, wherein in the winding coils only one slot remains open to allow the passage of the support rail 3, on which the permanent magnets 4 are supported.
  • the winding coils are rectangular in cross-section and also rectangular permanent magnets 4 are based on a flat-shaped support rail 3, with only a kind of lower edge of the winding coils remains open.
  • the distance between the winding coils and the permanent magnet 4 is as low as possible in order to achieve the highest possible field strengths and driving forces.
  • three winding phases are arranged one behind the other, which are driven in a three-phase manner in a manner known per se.
  • the basic winding distribution can be derived from the single-layer break hole winding in tooth coil design.
  • the ten-pole arrangement with three-phase winding consists of 6 winding coils.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Linear Motors (AREA)
EP07009559A 2006-05-16 2007-05-12 Moteur linéaire Withdrawn EP1858142A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610022773 DE102006022773A1 (de) 2006-05-16 2006-05-16 Linearmotor

Publications (1)

Publication Number Publication Date
EP1858142A1 true EP1858142A1 (fr) 2007-11-21

Family

ID=38456394

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07009559A Withdrawn EP1858142A1 (fr) 2006-05-16 2007-05-12 Moteur linéaire

Country Status (3)

Country Link
EP (1) EP1858142A1 (fr)
DE (1) DE102006022773A1 (fr)
WO (1) WO2007131789A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013113353A1 (fr) 2012-01-30 2013-08-08 Siemens Aktiengesellschaft Système d'entraînement électrique pour un dispositif d'entraînement modulaire évolutif
WO2013127435A1 (fr) 2012-02-28 2013-09-06 Siemens Aktiengesellschaft Moteur électrique
WO2013127436A1 (fr) 2012-02-28 2013-09-06 Siemens Aktiengesellschaft Moteur electrique
WO2014044308A1 (fr) 2012-09-20 2014-03-27 Siemens Aktiengesellschaft Actionneur électrique
DE102015209672A1 (de) 2015-05-27 2016-12-01 Siemens Aktiengesellschaft Tragflächenflugzeug und Verfahren zum Betrieb eines Tragflächenflugzeugs
DE102015209678A1 (de) 2015-05-27 2016-12-01 Siemens Aktiengesellschaft Grenzflächenabsaugvorrichtung für ein Tragflächenflugzeug, Tragflächenflugzeug mit einer Grenzflächenabsaugvorrichtung und Verwendung eines Doppelspulenaktormotors als Antriebseinheit einer Grenzflächenabsaugvorrichtung
WO2016188833A1 (fr) 2015-05-27 2016-12-01 Siemens Aktiengesellschaft Unité de propulsion pour un aéronef, aéronef comportant une unité de propulsion et utilisation d'un moteur actionneur à double bobine
DE102015214255A1 (de) 2015-07-28 2017-02-02 Siemens Aktiengesellschaft Triebwerk für ein Luftfahrzeug sowie Luftfahrzeug oder Tragflächenflugzeug mit einem Triebwerk
WO2018108299A1 (fr) * 2016-12-17 2018-06-21 Knorr-Bremse Gesellschaft Mit Beschränkter Haftung Ensemble marchepied coulissant pour véhicule automobile ou pour véhicule ferroviaire
EP3309943A4 (fr) * 2015-06-11 2019-05-08 Yuzen Sustainable Energy Co., Ltd. Dispositif électromagnétique
WO2024079205A1 (fr) * 2022-10-11 2024-04-18 Dennis Majoe Machine électromagnétique

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007044176A1 (de) 2007-09-15 2009-03-19 Gea Air Treatment Gmbh Trommellüfter mit Direktantrieb
DE102009017549A1 (de) * 2009-04-17 2010-10-21 Zollern Maschinenbauelemente Gmbh & Co.Kg Linearmotor
DE102014226861A1 (de) 2014-12-22 2016-06-23 Siemens Aktiengesellschaft Elektrischer Verdichter

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2079068A (en) 1980-05-19 1982-01-13 Kelly H P G Linear motor
JPS5836162A (ja) * 1981-08-25 1983-03-03 Takahashi Yoshiteru 筒体駆動装置
JPH10323008A (ja) * 1997-05-14 1998-12-04 Minolta Co Ltd シャフト型リニアモータ
GB2343997A (en) 1998-11-23 2000-05-24 Linear Drives Ltd PM stator support within drive coil in linear motor
WO2000052810A1 (fr) * 1999-03-03 2000-09-08 Nicholas Souris Bobine pour dispositif electromagnetique produisant un mouvement rectiligne
US20020079997A1 (en) 2000-12-26 2002-06-27 Mikhail Godkin Linear brushless DC motor with ironless armature assembly
US20040119356A1 (en) * 1998-10-21 2004-06-24 Werner Anwander Electric machine having electric coils and permanent magnets
DE102004002922A1 (de) 2003-01-22 2004-08-19 Thk Co., Ltd. Linearmotor und Linearführungsgerät

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3933790C2 (de) * 1989-10-10 1994-03-17 Werner Anwander Elektrische Maschine mit einem Rotor und einem Stator
DE3934056A1 (de) * 1989-10-12 1991-05-08 Zeiss Carl Fa Tastkopf fuer koordinatenmessgeraete
DE19649518A1 (de) * 1996-11-29 1998-06-04 Daimler Benz Ag Linearer Synchronmotor mit passivem Stator
EP0858965B1 (fr) * 1997-02-17 2000-04-26 Thyssen Aufzugswerke GmbH Moteur linéaire pour l'entraínement d'une cabine d'ascenseur
DE29723597U1 (de) * 1997-11-10 1998-10-22 Siemens Ag Linearmotor
DE10154791A1 (de) * 2001-11-08 2003-07-24 Walter Thurner Elektrische Unipolarmaschine
DE102004020793A1 (de) * 2004-04-28 2005-11-24 Oswald Elektromotoren Gmbh Doppelkamm-Linearmotor

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2079068A (en) 1980-05-19 1982-01-13 Kelly H P G Linear motor
JPS5836162A (ja) * 1981-08-25 1983-03-03 Takahashi Yoshiteru 筒体駆動装置
JPH10323008A (ja) * 1997-05-14 1998-12-04 Minolta Co Ltd シャフト型リニアモータ
US20040119356A1 (en) * 1998-10-21 2004-06-24 Werner Anwander Electric machine having electric coils and permanent magnets
GB2343997A (en) 1998-11-23 2000-05-24 Linear Drives Ltd PM stator support within drive coil in linear motor
WO2000052810A1 (fr) * 1999-03-03 2000-09-08 Nicholas Souris Bobine pour dispositif electromagnetique produisant un mouvement rectiligne
US20020079997A1 (en) 2000-12-26 2002-06-27 Mikhail Godkin Linear brushless DC motor with ironless armature assembly
DE102004002922A1 (de) 2003-01-22 2004-08-19 Thk Co., Ltd. Linearmotor und Linearführungsgerät

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BOLDEA I ET AL: "Linear electric actuators and generators", ELECTRIC MACHINES AND DRIVES CONFERENCE RECORD, 1997. IEEE INTERNATIONAL MILWAUKEE, WI, USA 18-21 MAY 1997, NEW YORK, NY, USA,IEEE, US, 18 May 1997 (1997-05-18), pages MA1 - 11, XP010231716, ISBN: 0-7803-3946-0 *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013113353A1 (fr) 2012-01-30 2013-08-08 Siemens Aktiengesellschaft Système d'entraînement électrique pour un dispositif d'entraînement modulaire évolutif
WO2013127435A1 (fr) 2012-02-28 2013-09-06 Siemens Aktiengesellschaft Moteur électrique
WO2013127436A1 (fr) 2012-02-28 2013-09-06 Siemens Aktiengesellschaft Moteur electrique
US9806588B2 (en) 2012-02-28 2017-10-31 Siemens Aktiengesellschaft Electric motor
WO2014044308A1 (fr) 2012-09-20 2014-03-27 Siemens Aktiengesellschaft Actionneur électrique
DE102015209673A1 (de) 2015-05-27 2016-12-01 Siemens Aktiengesellschaft Antriebseinheit für ein Luftfahrzeug, Luftfahrzeug mit einer Antriebseinheit und Verwendung eines Doppelspulenaktormotors
WO2016188833A1 (fr) 2015-05-27 2016-12-01 Siemens Aktiengesellschaft Unité de propulsion pour un aéronef, aéronef comportant une unité de propulsion et utilisation d'un moteur actionneur à double bobine
WO2016188836A1 (fr) 2015-05-27 2016-12-01 Siemens Aktiengesellschaft Aéronef à voilure et procédé pour faire fonctionner un aéronef à voilure
DE102015209678A1 (de) 2015-05-27 2016-12-01 Siemens Aktiengesellschaft Grenzflächenabsaugvorrichtung für ein Tragflächenflugzeug, Tragflächenflugzeug mit einer Grenzflächenabsaugvorrichtung und Verwendung eines Doppelspulenaktormotors als Antriebseinheit einer Grenzflächenabsaugvorrichtung
DE102015209672A1 (de) 2015-05-27 2016-12-01 Siemens Aktiengesellschaft Tragflächenflugzeug und Verfahren zum Betrieb eines Tragflächenflugzeugs
EP3309943A4 (fr) * 2015-06-11 2019-05-08 Yuzen Sustainable Energy Co., Ltd. Dispositif électromagnétique
DE102015214255A1 (de) 2015-07-28 2017-02-02 Siemens Aktiengesellschaft Triebwerk für ein Luftfahrzeug sowie Luftfahrzeug oder Tragflächenflugzeug mit einem Triebwerk
WO2017016710A1 (fr) 2015-07-28 2017-02-02 Siemens Aktiengesellschaft Propulseur pour un aéronef et aéronef ou avion à ailes comprenant ce propulseur
WO2018108299A1 (fr) * 2016-12-17 2018-06-21 Knorr-Bremse Gesellschaft Mit Beschränkter Haftung Ensemble marchepied coulissant pour véhicule automobile ou pour véhicule ferroviaire
US11554721B2 (en) 2016-12-17 2023-01-17 Knorr-Bremse Gesellscaft mit beschränkter Haftung Sliding step assembly for a motor vehicle or for a rail vehicle
WO2024079205A1 (fr) * 2022-10-11 2024-04-18 Dennis Majoe Machine électromagnétique

Also Published As

Publication number Publication date
WO2007131789A1 (fr) 2007-11-22
DE102006022773A1 (de) 2007-11-22

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